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Finding the Fourth Proportional to 365,878.80, 548,818.20 and 240,312.60

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Solution

The fourth proportional to 365,878.80, 548,818.20 and 240,312.60 is: 360,468.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,878.80 : 548,818.20 = 240,312.60 : x
  2. Step 2: Convert to fraction form
    365,878.80/548,818.20 = 240,312.60/x
  3. Step 3: Cross multiply
    365,878.80x = 548,818.20 × 240,312.60
  4. Step 4: Simplify right side
    365,878.80x = 131,887,928,569.32
  5. Step 5: Solve for x
    x = 131,887,928,569.32/365,878.80
  6. Step 6: Final answer
    x = 360,468.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.